Compressor and Condenser Fan Do Not Operate

Step 1: Check fuse and relay




1. Check fuses.
2. If a fuse is open, check for a sort circuit in wiring harness before replacing fuse.
3. If fuse is OK, proceed to inspection.

Inspection

A/C relay
1. Disconnect A/C relay.
2. Check for continuity between following terminals of the relay.




3. If not as specified, replace the relay.
4. If correct, go to next step.
5. Apply 12 V to the terminal 85 and ground the terminal 86.




6. Check for continuity between terminals 87 and 30.
7. If not as specified, replace the relay.
8. If correct, go to step 2.

Step 2: Check voltage at A/C switch

1. Turn the ignition switch to ON position.
2. Verify that the blower and A/C switches are in OFF position.




3. Check voltage at the following terminal of A/C switch connector G-05.
4. Turn the A/C switch to ON position.




5. Check voltage at following terminal of A/C switch connector G-05.




6. Check voltage between the terminal 3(L) and following terminal of A/C switch connector G-05.




7. Check voltage between the terminal 3(L) and following terminal of A/C switch connector G-05.

Step 3: Check voltage at A/C thermocon

1. Turn the ignition switch to ON position.
2. Turn blower and A/C switches to ON position.




3. Check voltage at following terminal of A/C thermocon connector G-06.




4. Check for voltage between terminal 1 (BR) and following terminal of thermocon connector G-06.




5. Check for voltage between terminal 3 (BR/Y) and following terminal of thermocon connector G-06.

Inspection

A/C thermocon

1. Disconnect A/C thermocon connector G-06.
2. Apply 12 V to the terminal 1 (BR) and ground terminal 3 (BR/Y).




3. Connect a test light between the terminal 2 (Y/G) and C (BR/Y) of A/C thermocon connector G-06.
4. If not as specified, replace the A/C thermocon.
5. If correct, go to step 4.

Step 4: Check voltage at A/C dual pressure switch

1. Turn the ignition switch to ON position.
2. Run engine idles.
3. Turn blower and A/C switches to ON position.




4. Check voltage at following terminal of A/C dual pressure switch connector G-07.

Step 5: Check refrigerant pressure

1. Turn the ignition switch to OFF position.
2. Connect A/C manifold gauge set.
3. Operate engine at 2000 rpm and set air conditioner to maximum cooling.




4. Check high-pressure side refrigerant pressure.